Vacuum exhaust



Nov. 20, 1951 J. H. WILSON 2,575,698

VACUUM EXHAUST Filed March 19, 1948 2 SHEETS-SHEET l Fig. I.

2a J John H. Wilson 24 IN V EN TOR.

WW 3m Nov. 20,195] J. H. WILSON I 2,575,698

VACUUM EXHAUST Filed March 19, 1948 2 S HEETSSHEET 2 John H. WilsonINVENTOR.

Attorneys Patented Nov. 20, 1951 UNITED STATES PATENT OFFICE" 2,575,698VACUUM EXHAUST John H. Wilson, Bay Shore,'N. Y'. Applicatin,Mar.ch;19,1948 Serial No. 15,891"

control the flow of liqu id as to. quantityandw A conventionalboatisillustrated and'generallyindicated at iii; This boat includesthe usualhulll2 and other pertinent portions. Fixed to a convenient portion ofthesaid heat, preferabl'yf adjacent thelowest extremity thereof,"is a hous''l ing. it. Thishousing may beat-tached by means" of conventionaiholtsl, rivets; suitable brackets orthe like.- lt'willbenoted that thepreferred configuration ofthehousing in this form of the inventionincludesa pair of inwardly tapering scoops ittand- 58 respectivelyhaving" an "inte velocity A further object of this invention is tosupport the exhaust pipe ofwaboat within a .c0n-- grail-y formed stop*adjac'ent each end"thereof. A fiat valve 22'is pivotal-lyassoci-atdwiththe housing-i andjournalle'd 'thereinr-being permittedduit and to communicateithe conduit with a liquid scoop attachedtoawconvenient portion. of a boat.

Another purposeof this invention is to regulate the inflow ofliquidinto.thevsarneconduit by. means of a swinging valvelpositioned inawater. scoop or housing.

Another purpose of this invention is to .direct the exhaust normallyassociated with boatstin such a way as to substantially obviate harmfuland undesired odors within the boat.

Another purpose of this invention is to increase the eihciencyof theengine Within the boat 7 by means of cooling the exhaust and. also bymeans of reducing the back pressure of the en-. gins in supplyingasteady flow of liquidate. speed greater than theegress of exhaust,.adjae." cent the egression point of the exhaust from the conventionalexhaust pipe.

Another object of this invention is to supply: an extremely simplifieddevice foruse in assoelation with boats and the like,ser ving thepur'-.--- poses set forth subsequently and above.

Ancillary objects and features of novelty will become apparentto thoseskilled in the art, in following the description of the preferred formsor" the invention, illustrated in the accompanying drawings, wherein:

Figure'l is a front view of a boat.- having one form of the inventionassociated-"therewith;

Figure 2 is an elevational view of one form of the invention, portionsbeing shown in section? to illustrate details ofconstruction;

Figure 3 is a sectional view taken substantially on the line t-3 ofFigure 2 andin the direction; of the arrows;

Figure 4 is a sectionalview-takenlon theline 4- 2 of Figure 2 and inthe-direction of the-are: rows, and;

Figure 5 is a sectional view illustrating a second form of theinvention.,

This invention has been developed to provide. a device for the purposeof increasing engine efficiency and also for preventing-or.substantially I: obviating undesired fumes and odors from entering thepassenger carrying portions of a boat.

,to swing onlyqa-selectedddistance when'itwill' strike either the-stop-28 or --the:",uppe'r portion of the housing-a Inspection' of "Figure '2"clearly discloses two of sucirvalvrezsrone bein'g'positioned within thesaid-4000p: l8 Whilethe"other"is po=" ;sitioned in thesaidscoop-l 8:-

Means forstrainingthe-incoming fluid is pro vlded at each end of-the-said-'scoop"or housing"" HLJEhe preferred-means-consists of a grate'24 being attached -by-=suitable--scr6ws' 2 E *or'th'e like. Thi's, Of-'COUISBfTEIldGIS the-gratedetachable-in order that it maybe-removedifiound desirable or maybe repIaced---byone -h-avinglarger or' smallerapertures or opening therein.

A collar: 28 issupplied atan'ope'ning in 'the""f said housing Itand-has-a section30 of a con Y duit secured thereto;- This section'maybe at f tached through themedium of alap joint as dicated at'32.

A recessed =por-tion-=34-is suppliedinthesec tiontiiand has -a-slidervalve 35 'positio'ned'there j in. A cage- 38 is assoeiatedwith'thesection-3O opposite the said recessed portion' 34 whereinthe saidsliden-valve-or valve plate*36'may'bes'e-' lectively -positioned- By'sliding *the" valve plate 36 Back and forth across "the same sectibn3fl,the rate and-quantity of flow therethrough 'rnay beselectively-regu1ated-.--The flow is produced" due to the forwardtravelof the boatto' 'whi'cli'itj is attached; the-said housing 14being" submerged:-

In-order to regulate -'the valve plate' 36i'sielec tively, +a threadedshank" '40 is rotata-bly' jou nalled therein andreceived' 'in a"suitable internally threaded boss 4-2 securedto the saidlvalve platerecipient 38s =A suitabl'e k'nobbrhandle may be fixed to the saidthreaded shanli flfor manual actuation-purposes; h N h h A secondcurvedsection-te ls attaclidftc' the said sectioir tfl iri-"orderconduit and of course the like may be'used ln Athimsecuoiiaa' i g 1se ea,0 H which 'is passe'd hulP iFi'gu 6' attached to the said section 46and tapers toward the end portion thereof. The conventional exhaust pipe52 extends within the said section 48 and is supported by means of theboss 54, either attached to or formed integral with the said section 48.I

Means for supporting the terminal portion of the exhaust pipe 52adjacent but not at the ter- -minal portion of the said section 48 issupplied.

The preferred means consists of a web 56 immovably positioned thereinwith the exhaust pipe 52 rigidly associated therewith. It will be notedthat the exhaust pipe 52 is curved in order to accommodate variousrequirements and considerations of the invention. This curve is suppliedin order to direct the exhaust toward the rear portion of the boat andfurther, the terminal portion of the said gooseneck-element 18 is justat the water line in order that water rushing through the housing l4 andthrough the curved conduit may admix with the said exhaust in ordertomaintain it within the liquid for a short duration while the boat ismoving steadily away from that particular locality. Of course, a smallamount of the exhaust gas is retained in the water and the remainder ofthe exhaust gas requires some time to bubble through the liquid medium.This permits the boat or the like to be moved to another location moredistant from the fumes than it would ordinarily be.

Referring now to Figure 5, a second form of the invention isillustrated. This form may be used wherein straight or substantiallystraight exhaust pipes are supplied. The difierentiating features ofthis embodiment of the invention include the absence of the curvedterminal 59 of the gooseneck section or element and the substantiallystraight, conventional exhaust pipe 68 for use in association therewith.

Another diiferentiating feature is the actual configuration of thehousing 62 utilizing only half of the housing illustrated in Figure 2.This housing has the general configuration of only one scoop such as 16and therefore, does not require the services and utility of the pivotedvalves 22 and the stops 20 therefor. The scoop or housing 62 may havethe grate 24 associated therewith in order to strain the liquid beforeit proceeds through the apparatus thereby preventing clogg-ing or thelike.

The remainder of the structure is identical to that disclosed anddescribed in connection with the first form of the invention. It will benoted that this second form of the invention can and is used only inassociation with boats which travel in a single direction. The form ofthe invention illustrated in Figure 2 may well be subjected for use inassociation with ferries and the like which generally travel in aforward and backward direction about equally in distance.

In operation of the device shown in Figure 5, the engine of the boat isactuated. Exhaust flows as normal through the exhaust pipe 68. This flowis aided by the suction created by the water rushing through the conduit48 (see Figure 2). The water is controlled by the valve shown in Figure5, the control being as to quantity of water flow through the scoop 62.

As disclosed in Figure 2, the conduit 48 narrows to the point of egressof the liquid and at the place where the exhaust pipe 52 terminates.

In operation of the form of the invention shown in Figure 2 thedistinction is that the Valves 22 are operated. When one valve is downas shown in this figure, the liquid is allowed to enter the scoop orhousing for passage into the conduit 48. When the boat is operated inthe reverse direction, as a ferry boat in operation, said one valve 22is closed and the other is open.

Having described the invention what is claimed as new is:

1. In combination with the hull of a boat and an exhaust pipe from theengine of said boat, a device for enhancing the flow of exhaust gasesthrough said exhaust pipe comprising a housing with means for attachingsaid housing to the exterior of said hull, said housing having openingsat the front and rear ends thereof, a first valve carried by saidhousing and controlling one of said openings and a second valve carriedby said housing and controlling the other of said openings, a conduitattached in communication with said housing intermediate the endsthereof to conduct liquid from said housing, said exhaust pipe extendinginto and located concentrically within a portion of said conduit andhaving its open end arranged to deliver engine exhaust gases in the samedirection as the direction of flow of fluid through said conduit so thatthe passage of fluid through said conduit assists in discharging exhaustgases from said exhaust pipe.

2. The combination of claim 1 and a control valve in said conduit, and aweb disposed in said conduit supporting the exhaust pipe in concentricrelation with said conduit.

3. In combination with the hull of a boat and an exhaust pipe from theengine of said boat, a device for enhancing the flow of exhaust gasesthrough said exhaust pipe, said device comprising a housing with means,for attaching said housing to the exterior of said hull, said housinghaving a front opening, said housing having a discharge opening spacedfrom said front opening, a conduit attached in communication with saiddischarge opening, a valve carried by said conduit and arranged tocontrol the passage of water through said housing and said conduit, saidexhaust pipe extending into and. located concentrically within a portionof said conduit and having its open end arranged to deliver engineexhaust gases in the same direction as the direction of flow of Waterthrough said conduit so that the passage of water through said conduitassists in discharging exhaust gases from said exhaust pipe, and meanscarried by said conduit to support said exhaust pipe within saidconduit.

JOHN H. WILSON.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 714,077 Whittelsey Nov. 18, 1902717,356 Cunningham Dec. 30, 1902 818,951 Goodwin Apr. 24, 1906 2,382,218Fernstrum Aug. 14, 1945 2,462,450 Wilson Feb. 22, 1949 2,466,525 WilsonApr. 5, 1949 2,522,883 MacArthur Sept. 1 1950 2,543,024 Humphrey Feb.27, 1951 FOREIGN PATENTS Number Country Date 369,209 Germany Feb. 16,1923 643,075 France May 10, 1928

